Direction : Read the following questions carefully and choose the right answer.
Important for :
1
What will come in the place of question mark (?) in the following question:

57% of 350 + ?% of 170 = – 89.5 – 512 – 9
» Explain it
C
57% of 350 + ?% of 170 = – 89.5 – 512 – 9

 350 × 57 + ? × 170 = – 89.5 – 8 – 9 100 100

199.5 + 1.7 × ? = – 106.5

1.7 × ? = – 106.5 – 199.5

1.7 × ? = – 306

? = – 180

Hence, option C is correct.
2
What will come in the place of question mark (?) in the following question:

 6 4 + 2 – 4 2 = ? – 1 11 33 3 33
» Explain it
C
 6 4 + 2 – 4 2 = ? – 1 11 33 3 33

 6 4 + 2 – 4 2 + 1 = ? 11 33 3 33

 ? = (6 – 4) + ( 4 + 2 – 2 + 1 ) 11 33 3 33

 ? = 2 + 12 + 2 – 22 + 1 33

 ? = 2 + – 7 33

 ? = 2 – 7 33

 ? = 1 + ( 1 – 7 ) 33

 ? = 1 + 26 = 1 26 33 33

Hence, option C is correct.

3
What will come in the place of question mark (?) in the following question:

87 × 6.3 ÷ 841 + 11.5 – 16.3 + 13.8 = ?
» Explain it
B
87 × 6.3 ÷ 841 + 11.5 – 16.3 + 13.8 = ?

? = 87 × 6.3 ÷ 29 + 25.3 – 16.3

? = 3 × 6.3 + 9

? = 18.9 + 9 = 27.9

Hence, option B is correct.
4
What will come in the place of question mark (?) in the following question:

529 ÷ ?% of 270 = 115 × 81 ÷ ?2
» Explain it
B
529 ÷ ?% of 270 = 115 × 81 ÷ ?2

23 ÷ (2.7 × ?) = 115 × 9 ÷ ?2

23 ÷ 2.7 = 115 × 9 ÷ ?

? = 115 × 9 ÷ 23 × 2.7

? = 121.5

Hence, option B is correct.
5
What will come in the place of question mark (?) in the following question:

?2% of 1219 ÷ 53 = (246.74 – 181.36 + 103.62) ÷ 23
» Explain it
A
?2% of 1219 ÷ 53 = (246.74 – 181.36 + 103.62) ÷ 23

 ?2 × 1219 ÷ 53 = (350.36 – 181.36) ÷ 23 100

 ?2 × 23 = 169 ÷ 23 100

?2 = 169 × 100 ÷ (23 × 23)

? = 13 × 10 ÷ 23
 ? = 130 23

Hence, option A is correct.